Backed up by Germany, Austria-Hungary declares war on Serbia on 28 July. Russia quickly steps in to protect the small nation and mobilises its army. Germany responds by declaring war on Russia.

It was just five months earlier that Austria-Hungary declared war on Serbia. The continent was transformed into a bloody, battered mess. But on Christmas Eve, a truce was called. It came to be ...

28th July 1914 – Austria-Hungary declared war on Serbia Russia asked Germany to get Austria-Hungary to hold back and when they refused Russia prepared her army to fight 1st August 1914 Germany ...

The First World War officially began on July 28, 1914, when Austria-Hungary declared war on Serbia. The assassination of Austro-Hungarian Archduke Franz Ferdinand catalyzed a chain reaction of ...